The immune system is the body’s highly sophisticated defense mechanism, responsible for maintaining internal balance and protecting us from harmful external and internal threats. It serves as a guardian against invading pathogens such as bacteria, viruses, parasites, and fungi. At the same time, it plays a crucial role in identifying and eliminating abnormal cells within the body, such as cancerous cells. The immune system is not a singular entity but a network of cells, tissues, and organs working in concert to recognize threats, neutralize them, and remember them for future protection. In today’s fast-paced and ever-changing environment, understanding how the immune system functions and how to support it has never been more important.